Cheapest return flights from Denver to Keflavik in January from $371

AirHint found the following cheapest return flights from Denver (DEN) to Keflavik (KEF) in January 2026 (see full year).

Return flights

25 Jan - 31 Jan Icelandair direct

Also check the deals for one-way flights from Denver to Keflavik in January.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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